Bi-directional shift register and display device using same
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United States of America Patent
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Dec 19, 2006
Issued Date -
N/A
app pub date -
Apr 9, 2003
filing date -
Apr 10, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
A driving circuit of the present invention includes a signal line switching circuit section that connects each signal line with two adjacent ones of output stages of a shift register circuit, one of the two adjacent ones of output stages following the other, switches over so that the signal lines are, in the switching-over manner and in concert, driven either by the following output stages or by the followed output stages. Thus, it is possible to provide a driving circuit that can be freely placed in any manner, is suitable for many purposes, and is capable of switching shifting directions without needing inversion of a clock signal and without causing shift of pixels, and switching the shifting directions with a simple arrangement even if there are an even number of signal lines for driving effective pixel columns.
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